The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2016
Filed:
Dec. 06, 2012
Applicant:
Sensormatic Electronics, Llc, Boca Raton, FL (US);
Inventors:
Richard Loyd Copeland, Lake Worth, FL (US);
Ming-Ren Lian, Boca Raton, FL (US);
Assignee:
Tyco Fire & Security GmbH, Neuhausen am Rheinfall, CH;
Primary Examiner:
Int. Cl.
CPC ...
H01Q 21/20 (2006.01); G08B 13/24 (2006.01); H01Q 9/16 (2006.01); H01Q 1/22 (2006.01); H01Q 21/06 (2006.01); H01Q 21/29 (2006.01);
U.S. Cl.
CPC ...
G08B 13/2468 (2013.01); H01Q 1/2216 (2013.01); H01Q 9/16 (2013.01); H01Q 21/062 (2013.01); H01Q 21/29 (2013.01);
Abstract
A method and system for producing an electromagnetic field that exhibits a strong near field that is sufficient to deactivate an electronic article surveillance, EAS, tag and a weak far field that is insufficient to deactivate the EAS tag are disclosed. According to one embodiment, two half-wavelength dipoles spaced apart by about a half-wavelength are excited by oppositely phased signals.